Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5578827 | Process for monitoring polycondensation or polyaddition reactions | Udo Wolf | 1996-11-26 |
| 5004779 | Process for the preparation of aqueous, oxidatively drying alkyd resins and their use in or as aqueous lacquers and coating compounds | Harald Blum, Jurgen Meixner, Lothar Fleiter, Wolfgang Wellner | 1991-04-02 |
| 4927903 | Diphenol monoesters of carboxylic acids and process for their preparation | Rolf Dhein, Hans Rudolph | 1990-05-22 |
| 4754001 | Thermosetting cyanate resin and the use thereof for the production of composite materials and IPNs | Johannes Blahak, Rolf Dhein, Lothar Preis | 1988-06-28 |
| 4735721 | Polyether-copolycarbonates for dialysis membranes | Rolf Dhein, Ralf Lange, Werner Waldenrath | 1988-04-05 |
| 4631319 | Thermosetting cyanate resin and the use thereof for the production of composite materials and IPNs | Johannes Blahak, Rolf Dhein, Lothar Preis | 1986-12-23 |
| 4607070 | Polyether-copolycarbonates for dialysis membranes | Rolf Dhein, Ralf Lange, Werner Waldenrath | 1986-08-19 |
| 4563516 | Polyether-polycarbonates for dialysis membranes | Rolf Dhein, Ralf Lange, Werner Waldenrath | 1986-01-07 |
| 4506066 | Thermoplastic polycarbonates, their preparation and their use as shaped articles and films | Harald Medem, Rolf Dhein, Werner Nouvertne, Hans Rudolph | 1985-03-19 |
| 4435544 | Mixtures of polycarbonate elastomers, containing hydrogenated dimeric fatty acid esters as condensed units, and polyolefines and, optionally, other polycarbonates | Werner Nouvertne, Harald Medem, Rolf Dhein, Peter Muller | 1984-03-06 |
| 4430492 | High-molecular, segmented, thermoplastically processable, aromatic polycarbonates containing co-condensed dimeric fatty acid esters, their preparation and their use | Hans-Heribert Burgdorfer, Rolf Dhein, Gottfried Schneider | 1984-02-07 |
| 4333809 | Cross-linkable polycarbonate elastomers, a process for their preparation and use for packaging medicines | Dieter Freitag, Hans-Heribert Burgdorfer, Gunther Lehnert, Siegfried Adelmann, Hans Rudolph | 1982-06-08 |
| 4297455 | Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups and their use for the preparation of polyester-diol bis-diphenol carbonates and polyester/polycarbonates | Christian Lindner, Carlhans Suling, Herbert Bartl, Dieter Freitag, Klaus Konig | 1981-10-27 |
| 4281101 | Process for the preparation of aliphatic-aromatic polycarbonates with diphenol carbonate end groups and their use for the preparation of high-molecular, segmented, aliphatic-aromatic polycarbonate elastomers which can be processed as thermoplastics | Klaus Konig, Dieter Freitag, Gunther Lehnert, Christian Lindner | 1981-07-28 |
| 4267303 | Process for the preparation of polymers with diphenol carbonate end groups | Klaus Konig, Christian Lindner, Carlhans Suling, Dieter Freitag | 1981-05-12 |
| 4252922 | Polycarbonate molding compositions with improved resilience properties | Siegfried Adelmann, Dieter Margotte, Werner Nouvertne, Frank Kleiner | 1981-02-24 |
| 4217437 | Process for the preparation of carbonic acid bis-diphenol esters of polyalkylene oxide-diols lengthened via carbonate groups and their use for the preparation of high-molecular, segmented polyether/polycarbonates which can be processed as thermoplastics | Dieter Freitag, Christian Lindner, Carlhans Suling, Herbert Bartl, Klaus Konig | 1980-08-12 |
| 4217297 | Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups | Christian Lindner, Carlhans Suling, Herbert Bartl, Dieter Freitag, Klaus Konig | 1980-08-12 |
| 4216298 | Process for the preparation of carbonic acid bis-diphenol esters of polyester-diols and their use for the preparation of high-molecular segmented polyester/polycarbonates which can be processed as thermoplastics | Dieter Freitag, Christian Lindner, Carlhans Suling, Herbert Bartl, Klaus Konig | 1980-08-05 |
| 4196276 | High-molecular weight, segmented, polycarbonate elastomers | Klaus Konig, Dieter Freitag, Volker Serini | 1980-04-01 |
| 4191705 | Process for the preparation of carbonic acid esters of polyester-polyols | Christian Lindner, Carlhans Suling, Herbert Bartl, Dieter Freitag, Klaus Konig | 1980-03-04 |